Category: Backup and Recovery

Introduction Crypto-viruses encrypt your data. If it asks money (a ransom) to decrypt, we call them “ransomware”. They cannot encypt your SQL Server databases because sql data and log files are in use by sqlservr.exe process, but they can encrypt…

Introduction Recently I had a client who basically lost his SQL Server databases. I decided to share this experience with you, so you can use it if you ever find yourself in so tough situation. The client found out that…

Introduction In this post I will give you a tip on how long it would be good to keep transaction logs. To understand why, basics of point-in-time recovery from backups are explained. If you are in a hurry: keep transaction…

Introduction We either have or will experience a drive failure. Doesn’t matter if we talk about HDD, SSD, or PCIe disks, any storage disk drive will fail eventually. But how probable it really is, especially if we have many drives?…

There are some myths widely spread about transaction log that are to be debunked here: Log backup copies log file FALSE. Someone might think if you have 100GB log, that log backup will also be 100GB, since they think the…

Introduction What is the best practice, how to properly set-up transaction log initial size, growth, and number of VLFs? There are many articles on the net on that theme, and some of them are suggesting really wrong concepts, like setting…

Transaction log truncate – why it didn’t shrink my log ? (Truncate vs Shrink) Introduction One term that makes the most confusion between people dealing with sql server transaction log is “log truncation”. In this article I’ll explain what log…

Introduction You got yourself in situation where transaction log has massively grown, disk space became dangerously low and you want a quick way to shrink it before server stops ? There are many articles on the net on that theme,…

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